Auxiliary device for testing orthopedic implant
By designing an auxiliary device for testing orthopedic implants, a combination of a splint and a cylinder is used to fix implants of different thicknesses and lengths, solving the problem of cumbersome clamp replacement during testing and improving the applicability and safety of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-27
AI Technical Summary
When testing the compressive strength of orthopedic implants, it is necessary to frequently change the clamps corresponding to different thicknesses, making the installation and removal process cumbersome and laborious.
An auxiliary device for testing orthopedic implants was designed, including a base, operating table, fixing plate, support plate and bidirectional screw. Through the cooperation of clamps and cylinders, implants of different thicknesses can be fixed and torque and pressure tests can be performed. It can adapt to implants of different lengths and reduce the frequency of clamp replacement.
It improves the applicability and convenience of the testing process, reduces the cumbersomeness of fixture replacement, enhances functionality and safety, and ensures efficient testing.
Smart Images
Figure CN224051818U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the medical instrument test equipment technical field, specifically is a kind of orthopedics implant test auxiliary device. BACKGROUND
[0002] Orthopedics implant is a kind of medical instrument for replacing or repairing human skeleton system structure, restores its function, and the material of orthopedics implant is various, mainly including metal, ceramic, polymer material and composite material etc.
[0003] In the production process of orthopedics implant, the anti-pressure mechanical property test is needed to implant product, to ensure the safety and effectiveness of implant in clinical use, in long time use observation, it is found that when implant is tested for anti-pressure performance, usually using fixture to fix implant, and the fixture is installed on operation table, then using hydraulic pressure equipment to implant certain pressure, to test whether implant is qualified, and implant usually has different thickness size, leading to the need to constantly change the fixture corresponding to different implant when testing, leading to the problem of relatively complicated and laborious installation and disassembly process.
[0004] Therefore, the utility model provides a kind of orthopedics implant test auxiliary device. UTILITY MODEL CONTENT
[0005] In order to make up for the deficiency of prior art, solve at least one problem raised in the background art, a kind of orthopedics implant test auxiliary device is presented.
[0006] The technical scheme adopted by the utility model to solve its technical problems is: the utility model discloses a kind of orthopedics implant test auxiliary device, including base;The base top is fixedly connected with operation table;The operation table top is symmetrically installed with a pair of fixed plate;The fixed plate side wall is equipped with connecting assembly;The fixed plate side wall is installed with first support plate and second support plate;First bidirectional screw rod is rotatably connected in the middle of first support plate and second support plate;A pair of clamping plates are symmetrically screwed in the middle of first bidirectional screw rod;The operation table top is installed with first air cylinder;The first air cylinder bottom is fixedly connected with pressure head;Through the above structure, first support plate and second support plate and first bidirectional screw rod are set, cooperate and use clamping plate, can be fixed to the implant of different thickness size, to improve the applicability when using, can reduce the process relatively complicated situation that the fixture corresponding to size needs to be frequently replaced in the process of implant testing.
[0007] Preferably, the connecting assembly comprises a second cylinder; the second cylinder is fixed to the side wall of the fixed plate; a rack is fixed to the top of the second cylinder; a rotating shaft is rotatably connected to the middle of the fixed plate; a gear ring is fixed to the middle of the rotating shaft; the gear ring and the rack are meshed with each other; the second supporting plate is fixed to the end of the rotating shaft; the first supporting plate is fixed to the side wall of the fixed plate; through the above structure, the second cylinder, the rack and the gear ring are arranged, and the pressure test of the pressure head and the rotating shaft is cooperated, so that the implant can be tested for torque, and the pressure test can be simultaneously performed, so that the functionality and applicability of the whole can be improved.
[0008] Preferably, the side wall of the operation table is fixedly connected with a motor body; the output end of the motor body is fixedly connected with a second bidirectional screw rod; a pair of sliding blocks are symmetrically and threadedly connected to the middle of the second bidirectional screw rod; the fixed plate is fixed to the top of the sliding block; a sliding groove is formed in the middle of the operation table; through the above structure, the motor body, the second bidirectional screw rod and the sliding block are arranged, the distance between the first supporting plate and the second supporting plate can be adjusted, the size of the implant of different lengths can be adapted, the applicability during use can be improved, and the process is complicated and laborious due to the need to adjust or replace the corresponding clamp.
[0009] Preferably, the top of the operation table is fixedly connected with a linear motor; the output end of the linear motor is fixedly connected with an extension plate; the first cylinder is fixed to the bottom of the extension plate; through the above structure, the linear motor and the extension plate are arranged, the position of the pressure head can be adjusted, different parts of the implant can be pressed for detection, the applicability during use and the convenience of detection can be improved.
[0010] Preferably, the side wall of the base is fixedly connected with a supporting table; the top of the supporting table is fixedly connected with a fixed limiting frame; a collecting box is placed in the limiting frame; the inner side wall of the collecting box is fixedly connected with a partition plate; through the above structure, the supporting table, the limiting frame and the collecting box are arranged, the implant after the test is ended can be collected, and the implant can be distinguished, so that the convenience during use can be improved.
[0011] Preferably, the top of the operation table is fixedly connected with a protection box; a pair of box doors are slidably connected to the side wall of the protection box; the box doors are opened and closed through magnetic force; through the above structure, the protection box and the box doors are arranged, the debris generated when the implant is broken is blocked, the situation that the operator is injured due to flying debris is reduced, and the safety during use is improved.
[0012] The beneficial effects of the utility model are as follows:
[0013] 1. The orthopedic implant test auxiliary device, through the first support plate, the second support plate and the first bidirectional screw, cooperates with the clamping plate, can be convenient for fixing the implant of different thickness size, so as to improve the applicability during use, can reduce the process more complicated caused by the need of frequently replacing the clamp corresponding to the size during the implant test.
[0014] 2. The orthopedic implant test auxiliary device, through the second air cylinder, the rack and the gear ring, cooperates with the pressure test of the rotating shaft and the pressure head, not only can test the torsion of the implant, but also can test the pressure at the same time, can improve the functionality and applicability. BRIEF DESCRIPTION OF DRAWINGS
[0015] The utility model makes further explanation in combination with the drawings.
[0016] Figure 1 It is the perspective view of the utility model;
[0017] Figure 2 It is the structure schematic view of the protection box in the utility model;
[0018] Figure 3 It is the structure schematic view of the operation table in the utility model;
[0019] Figure 4 It is the structure schematic view of the fixed plate in the utility model;
[0020] Figure 5 It is the structure schematic view of the clamping plate in the utility model.
[0021] LEGEND:
[0022] 1, base; 11, operation table; 12, fixed plate; 13, first support plate; 14, first bidirectional screw; 15, clamping plate; 16, first air cylinder; 17, pressure head; 18, second support plate; 2, second air cylinder; 21, rack; 22, gear ring; 23, rotating shaft; 3, motor body; 31, second bidirectional screw; 32, sliding block; 33, sliding slot; 4, linear motor; 41, extension plate; 5, support table; 51, limiting frame; 52, collection box; 53, partition; 6, protection box; 61, box door; 7, rubber pad. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5 As shown in the embodiment of this utility model, an auxiliary device for testing orthopedic implants includes a base 1; an operating table 11 is fixedly connected to the top of the base 1; a pair of fixing plates 12 are symmetrically installed on the top of the operating table 11; a connecting component is provided on the side wall of the fixing plate 12; a first support plate 13 and a second support plate 18 are installed on the side wall of the fixing plate 12; a first bidirectional screw 14 is rotatably connected to the middle of the first support plate 13 and the second support plate 18; a pair of clamping plates 15 are symmetrically threaded to the middle of the first bidirectional screw 14; a first cylinder 16 is installed on the top of the operating table 11; a pressure head 17 is fixedly connected to the bottom of the first cylinder 16; during operation, when performing pressure testing on the orthopedic implant, its two ends are placed between the first support plate 13 and the second support plate 18 respectively, and then the first cylinder 16 is rotated... A bidirectional screw 14 drives the clamping plates 15 to move relative to each other. When the first bidirectional screw 14 rotates in the forward direction, the clamping plates 15 will move closer together, thereby clamping and fixing the implant. Then, the first cylinder 16 is activated to stretch and drive the pressure head 17 to descend, thereby applying pressure to the implant below for testing. After the test, the first cylinder 16 is activated to retract and drive the pressure head 17 to rise. Then, the first bidirectional screw 14 is reversed to drive the clamping plates 15 away from each other, thereby releasing the fixation of the implant. Through the above structure, the first support plate 13, the second support plate 18, and the first bidirectional screw 14 are set up and the clamping plates 15 are used in conjunction to facilitate the fixation of implants of different thicknesses and sizes, thereby improving the applicability during use and reducing the need to frequently change the clamps corresponding to the size during the implant testing process, which would make the process cumbersome.
[0026] like Figure 3 and Figure 4As shown, the connecting assembly comprises a second cylinder 2; the second cylinder 2 is fixed to the side wall of the fixed plate 12; the top of the second cylinder 2 is fixedly connected with a rack 21; the middle of the fixed plate 12 is rotatably connected with a rotating shaft 23; the middle of the rotating shaft 23 is fixedly connected with a gear ring 22; the gear ring 22 and the rack 21 are meshed with each other; the second supporting plate 18 is fixed to the end of the rotating shaft 23; the first supporting plate 13 is fixed to the side wall of the fixed plate 12; in working, when the implant needs to be tested for torsion, the second cylinder 2 is started to stretch to drive the rack 21 to rise, at this time the rack 21 drives the gear ring 22 and the rotating shaft 23 to rotate, at this time the rotating shaft 23 drives the second supporting plate 18 to rotate, at this time the implant clamped between the first supporting plate 13 and the second supporting plate 18 can produce a certain torsion, so that the torsion resistance can be tested, after the test is completed, the second cylinder 2 is started to shrink to drive the rack 21 and the second supporting plate 18 to reset, through the above structure, the second cylinder 2, the rack 21 and the gear ring 22 are arranged, and the pressure test of the rotating shaft 23 and the pressure head 17 is matched, not only the implant can be tested for torsion, but also the pressure test can be simultaneously performed, the functionality and the applicability of the whole can be improved.
[0027] As shown in the Figure 3 , the side wall of the operation table 11 is fixedly connected with a motor body 3; the output end of the motor body 3 is fixedly connected with a second bidirectional screw rod 31; a pair of sliding blocks 32 are symmetrically and threadedly connected in the middle of the second bidirectional screw rod 31; the fixed plate 12 is fixed to the top of the sliding block 32; the middle of the operation table 11 is provided with a sliding groove 33; in working, the motor body 3 is started to drive the second bidirectional screw rod 31 to rotate, at this time a pair of sliding blocks 32 can be relatively slid in the sliding groove 33, at this time the fixed plate 12 can be relatively moved, at this time the distance between the first supporting plate 13 and the second supporting plate 18 can be adjusted, through the above structure, the motor body 3, the second bidirectional screw rod 31 and the sliding block 32 are arranged, the distance between the first supporting plate 13 and the second supporting plate 18 can be adjusted to adapt to the size of the implant of different lengths, the applicability in use can be improved, and the process is complicated and laborious due to the need to adjust or replace the corresponding clamp.
[0028] As shown in the Figure 3 , the top of the operation table 11 is fixedly connected with a linear motor 4; the output end of the linear motor 4 is fixedly connected with an extension plate 41; the first cylinder 16 is fixed to the bottom of the extension plate 41; in working, the linear motor 4 is started to drive the extension plate 41 to horizontally reciprocate above the operation table 11, at this time the first cylinder 16 and the pressure head 17 can change position, so that the pressure position of the pressure head 17 relative to the implant can be adjusted, through the above structure, the linear motor 4 and the extension plate 41 are arranged, the position of the pressure head 17 can be adjusted, so that the pressure detection can be carried out on different parts of the implant, the applicability in use and the convenience of detection can be improved.
[0029] AsFigure 1 As shown, the base 1 side wall is fixed with a support table 5; the top of the support table 5 is fixed with a fixed limiting box 51; the limiting box 51 is placed with a collection box 52; the inner side wall of the collection box 52 is fixed with a partition 53; during work, after the detection is finished, the implant can be placed in the collection box 52, at this time the partition 53 separates the collection box 52, and the qualified and unqualified products are placed in the collection box 52, and after the collection box 52 is filled, the collection box 52 is taken out and the implants in the collection box 52 are concentrated and treated, then the collection box 52 is placed in the limiting box 51, through the above structure, the support table 5, the limiting box 51 and the collection box 52 are arranged, which can facilitate the collection of the implants after the test is finished, and can distinguish them, so as to improve the convenience during use.
[0030] As shown in the figure, Figure 1 With Figure 2 As shown, the top of the operation table 11 is fixed with a protection box 6; a pair of box doors 61 are slidably connected to the side wall of the protection box 6; the box doors 61 are opened and closed by magnetic force; during work, the box doors 61 are opened when the implant is fixed, and the box doors 61 are closed after the implant is fixed, at this time the box doors 61 are attracted together under the action of magnetic force, so as to close the protection box 6; when the test is finished, the box doors 61 are opened and the implant is taken out; when the implant is broken during the test, the splashing of the debris will occur, at this time the protection box 6 and the box doors 61 can block the splashing of the debris inside, through the above structure, the protection box 6 and the box doors 61 are arranged, which can block the debris generated when the implant is broken, so as to reduce the situation that the operator is injured by the splashing debris, and improve the safety during use.
[0031] As shown in the figure, Figure 5 As shown, the side wall of the clamping plate 15 is fixed with a rubber pad 7; during work, when the clamping plate 15 clamps and fixes the implant, the rubber pad 7 will contact the surface of the implant, through the above structure, the rubber pad 7 is arranged to connect the clamping plate 15, which can improve the friction between the clamping plate 15 and the implant, so as to improve the stability of the implant fixation, and reduce the influence of the implant sliding on the test.
[0032] Working principle: when the orthopedic implant is tested under pressure, its two ends are placed between the first support plate 13 and the second support plate 18, then the first bidirectional screw 14 is rotated to drive the clamping plate 15 to move relatively, when the first bidirectional screw 14 is rotated in the positive direction, the clamping plate 15 will move close to each other, so as to clamp and fix the implant, then the first air cylinder 16 is started to stretch and drive the pressure head 17 to descend, so as to test the implant below, after the test is completed, the first air cylinder 16 is retracted to drive the pressure head 17 to rise, then the first bidirectional screw 14 is reversed to drive the clamping plate 15 to move away from each other, so as to release the fixation of the implant, when the implant needs to be tested under torsion, the second air cylinder 2 is started to stretch to drive the rack 21 to rise, at this time the rack 21 will drive the gear ring 22 and the rotating shaft 23 to rotate, at this time the rotating shaft 23 will drive the second support plate 18 to rotate, at this time the implant clamped between the first support plate 13 and the second support plate 18 will produce a certain torsion, so as to test the torsional resistance, after the test is completed, the second air cylinder 2 is retracted to drive the rack 21 and the second support plate 18 to reset, the motor body 3 is started to drive the second bidirectional screw 31 to rotate, at this time a pair of sliding blocks 32 can slide relatively in the sliding groove 33, at this time the fixed plate 12 can be moved relatively, at this time the distance between the first support plate 13 and the second support plate 18 can be adjusted, the linear motor 4 is started to drive the extension plate 41 to move horizontally and reciprocally above the operation table 11, at this time the first air cylinder 16 and the pressure head 17 can change position, so as to adjust the position of the pressure head 17 relative to the implant, after the detection is completed, the implant can be placed in the collection box 52, at this time the partition plate 53 divides the collection box 52 into two parts, and the qualified products and the unqualified products are placed in the collection box 52 respectively, after the collection box 52 is filled, the collection box 52 is taken out and the implants in it are treated collectively, then the collection box 52 is placed in the limiting frame 51, when the implant is fixed, the box door 61 is opened, after the implant is fixed, the box door 61 is closed, at this time the box door 61 is attracted together under the action of the magnetic force, so as to close the protection box 6, after the test is completed, the box door 61 is opened to take out the implant, when the implant is broken and damaged during the test, the protection box 6 and the box door 61 can block the splashing debris inside, when the clamping plate 15 clamps and fixes the implant, the rubber pad 7 will contact the surface of the implant.
[0033] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description in the specification are only to illustrate the principle of the utility model, without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. An orthopaedic implant testing aid comprising a base (1); characterised in that: The base (1) top fixed connection has operating table (11); operating table (11) top symmetry installs a pair of fixed plate (12); the fixed plate (12) side wall is equipped with connecting assembly; The fixed plate (12) side wall is installed with first support plate (13) and second support plate (18); The first support plate (13) and second support plate (18) middle part are rotatably connected with first bidirectional screw (14); The first bidirectional screw (14) middle part is symmetrically connected with a pair of clamping plate (15); Operating table (11) top is installed with first cylinder (16); The first cylinder (16) bottom fixed connection has pressure head (17).
2. An orthopedic implant testing fixture according to claim 1, wherein: The connecting assembly comprises a second cylinder (2); The second cylinder (2) is fixedly connected to the side wall of the fixed plate (12); The second cylinder (2) top fixed connection has rack (21); The fixed plate (12) middle part is rotatably connected with the shaft (23); The second support plate (18) is fixedly connected to the end of the shaft (23); The shaft (23) middle part is fixedly connected with the gear ring (22); The gear ring (22) and the rack (21) are engaged with each other; The first support plate (13) is fixedly connected to the side wall of the fixed plate (12).
3. The orthopedic implant testing fixture of claim 1, wherein: The operating table (11) side wall is fixedly connected with the motor body (3); The motor body (3) output is fixedly connected with the second bidirectional screw (31); The second bidirectional screw (31) middle part is symmetrically connected with a pair of sliding block (32); The fixed plate (12) is fixedly connected to the top of the sliding block (32); The operating table (11) middle part is provided with a sliding groove (33).
4. The orthopedic implant testing fixture of claim 1, wherein: The operating table (11) top fixed connection has linear motor (4); The linear motor (4) output is fixedly connected with the extension plate (41); The first cylinder (16) is fixedly connected to the bottom of the extension plate (41).
5. The orthopedic implant testing fixture of claim 1, wherein: The base (1) side wall is fixedly connected with the support table (5); The support table (5) top is fixedly connected with the limiting frame (51); The limiting frame (51) is placed with the collecting box (52); The inner side wall of the collecting box (52) is fixedly connected with the partition plate (53).
6. The orthopedic implant testing fixture of claim 1, wherein: The operating table (11) top is fixedly connected with the protection box (6); The protection box (6) side wall is slidably connected with a pair of box doors (61); The box door (61) is opened and closed by magnetic force.
7. The orthopedic implant testing fixture of claim 1, wherein: The clamping plate (15) side wall is fixedly connected with rubber pad (7).